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<br />293 (206). Longitudinal eye diameter <br />a. 24-26% of head length ............ 294 <br />b. 27-33% of head length ............ 297 <br />c. 34% of head length .............. 294 <br />d. 35% of head length ........ C. latipinnis <br /> <br />294 (287,293). Pigment over ventral to <br />ventro-Iateral surfaces of gill covers <br />(opercula) <br />a. absent or present but not in distinct <br />oblique rows (Figs. 45, 59) ......... 295 <br />b. present in a distinct oblique row of 3 or <br />more melanophores near or along ven- <br />tral margin of one or both preopercles <br />(Fig. 17) ................ C. latipinnis <br /> <br />295 (294). Lateral surface of body below <br />horizontal myosepta (or lateral <br />midline) exclusive of melanophores <br />associated with horizontal myosepta, <br />air bladder, visceral cavity (peri- <br />toneum), or gut, <br />a. unpigmented or with s5 melanophores <br />(Figs. 45, 59) ................... 296 <br />b. pigmented with ~6 melanophores (Fig. <br />46) ................... C.discobolus <br /> <br />296 (295). Length from anterior margin of snout <br />to posterior margin of vent <br />a. 76-80% SL . . . . . . . . . . . . . . . . . . . .. 300 <br />b. 81% SL . . . . . . . . . . . . . . . . C. discobolus <br /> <br />297 (293). Pigment over ventral to ventro-Iateral <br />surfaces of gill covers (opercula) <br />a. absent or present but not in distinct <br />oblique rows (Figs. 45, 59, 87) ...... 298 <br />b. present in a distinct oblique row of 3 or <br />more meIanophores near or along ven- <br />tral margin of one or both preopercles <br />(Fig. 17) ...................... 306 <br /> <br />298 (297). Lateral surface of body below <br />horizontal myosepta (or lateral <br />midline) exclusive of melanophores <br />associated with horizontal myosepta, <br />air bladder, visceral cavity (peri- <br />toneum), or gut, <br />a. unpigmented or with :$S melanophores <br />(Figs. 45, 59, 87) ................ 299 <br />b. pigmented with ~6 melanophores (Fig. <br />46) ................... C.discobolus <br /> <br />299 (298). Length from anterior margin of snout <br />to posterior margin of vent <br />a. 76-77% SL . . . . . . . . . . . . . . . . . . . .. 300 <br />b. 78-80% SL . . . . . . . . . . . . . . . . . . . .. 302 <br /> <br />c. 81% SL . . . . . . . . . . . . . . . . . . . . . .. 304 <br />d. 82-84% SL . . . . . . . . . . . . . . . . X. texanus <br /> <br />300 (296,299). Number of myomeres to poster- <br />ior margin of vent <br />a.35 ................... C.discobolus <br /> <br />b. 36-40 . . . . . . . . . . . . . . . . . . . . . . . .. 301 <br /> <br />301 (261,264,300). Total number of myomeres <br />a.46 ................... C.latipinnis <br />b. 47-49 . . . . . . . . . . . . . . . . . . C. discobolus <br />C. latipinnis <br /> <br />302 (299). Number of myomeres to posterior <br />margin of vent <br />a.35 .................. C.discobo/us <br /> <br />b. 36-40 . . . . . . . . . . . . . . . . . . . . . . . .. 303 <br />c. 41 . . . . . . . . . . . . . . . . . . . . X. lexanus <br /> <br />303 (243,246,302). Total number of myomeres <br />a. 44-45 . . . . . . . . . . . . . . . . . . . . X. texanus <br />b. 46 . . . . . . . . . . . . . . . . . . . C. latipinnis <br />X. lexanus <br />c. 47-49.................. C. discobolus <br />C. latipinnis <br />X. texanus <br /> <br />304 (242,245,252,291,299). Number of myomeres <br />to posterior margin of vent <br />a.35 .................. C.discobolus <br /> <br />b. 36-40 . . . . . . . . . . . . . . . . . . . . . . . .. 305 <br />c. 41 . . . . . . . . . . . . . . . . . . . . X. lexanus <br /> <br />305 (253,304). Total number of myomeres <br /> <br />a. 44-46.................... X.texanus <br />b. 47-49 . . . . . . . . . . . . . . . . . . C. discobolus <br />X. lexanus <br /> <br />306 (238,266,267,292,297). Length from anterior <br />margin of snout to posterior margin <br />of vent <br />a. 76-77% SL .............. C. /atipinnis <br />b. 78-80% SL .................... 307 <br />c. 81-84% SL ............... X. texanus <br /> <br />307 (306). Number of myomeres to posterior <br />margin of vent <br /> <br />a. 36-40......................... 308 <br /> <br />b. 41 . . . . . . . . . . . . . . . . . . . . X. texanus <br /> <br />308 (269,307). Total number of myomeres <br />a. 44-45 . . . . . . . . . . . . . . . . . . . . X. texanus <br />b. 46-49 . . . . . . . . . . . . . . . . . . . C. latipinnis <br />X. texanus <br /> <br />309 (217). Total number of myomeres <br />a. 43-46................. C. commersoni <br />C. p/atyrhynchus <br />b. 47 . . . . . . . . . . . . . . . . . C. commersoni <br />C. discobolus <br />C. platyrhynchus <br />c. 48-49................. C. commersoni <br />C. discobo/us <br /> <br />310 (235). Total number of myomeres <br />a. 43-46................ C. platyrhynchus <br />b. 47 . . . . . . . . . . . . . . . . . . C. discobo/us <br />C. platyrhynchus <br />c. 48-49.................. C.discobolus <br /> <br />72 <br />